Button-sewing machine



(No Model.) @sheets-sheet 1. H. H. CUMMINGS. Y BUTTON SEWING MACHINE. No. 397,587. Patented Feb., 12, 1889.

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H. H. CUMMINGS.

BUTTON SEWING MACHINE.

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H. H. CUMMINGS.

BUTTON SEWING MACHINE. No. 397,587. Patented Feb. 12, 1889.

W/T'NEEEEE/ /NVENTW 7 f i ffy/mm (No Model.) 6 Sheets-Sheet 4.

H. H. CUMMINGS. BUTTON SEWING MACHINE.

No. 397,587. Patented Feb. 12, 1889..

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H. H. CUMMIN-Gs. BUTTON SEWING MACHINE.

6 Sheets-Sheet. 5.

(No Model.)

-. Patented'feb'f 12l 1889.

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(No Model.)

H. H. CUMMINGS. BU-TTN SEWING MACHINE.

No. 397,587. Patented Peb. 12.1889.

W/TNE 555.9;

UNITED STATES PATENT OEETCE.

HENRY II. CUMMINGS, OF MALDEN, ASSIGNOR TO THE UNION BUTTON SEV- ING MACHINE COMPANY, OF BOSTON, MASSACHUSETTS.

BUTTON-SEWING MACHINE.

SPECIFICATION forming partl of Letters Patent No. 397,587, dated February 12, 1889.

Application filed May l2, 1887.

To all whom t may concern.:

Be it known that 1, HENRY H. CUMMINGS, of Malden, in the county of Middlesex and i State of Massachusetts, have invented certain new and useful Improvements in Button- Sewing Machines, of which the following is a specification.

My invention relates to button-sewing machines, so called, and has for its object to 1o adapt a machine of the kind mentioned to sewing on a four-hole button with either a cross or parallehbar stitch, as well as to sewing on bar and two-hole buttons, and Vto provide a construction whereby the machine may be readily changed from one kind of work to another and set7 to perform the workit is desired that it shall do.

My invention consists in improvements for operating and controlling the operations of 2o the button-holder, so as to present the button in proper position to the needle.

My invention also consists in improvements incidental to the foregoing.

I will now proceed to describe my inven- 2 5 tion, so that others skilled in the art to which it appertains may be able to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming a part of this 3o specification, the same letters indicating the same parts wherever they occur.

In the drawings, Figure 1 represents a bottom plan view of a button-sewing machine equipped with my improvements. Fig. 2 represents a front view of the same, the front depending flange of the bed being pictured as cut away in order to show the parts therebehind. Fig. 3 is an isometric view showing the construction and arrangement of the parts on and above the bed of the machine.

Fig. et is a left-hand end view of the parts connected with the bed of the machine, the latter being represented as in section, and showing also the needle and portions of the needle-bar and parts associated therewith to support and guide the same. Fig. 5 is a bottom plan view of certain parts connected with the lever for operating the button-holder, the parts being pictured as in position for Serial No. 237,297. (No model.)

reciprocating the button in one direction. Fig. 6 is a view similar to that shown in Fig. 5, showing the parts as in position to reciprocate the button in a direction at right angles to the direction in which it would be moved with the parts in position as pictured in Fig. 5. Fig. 7 is a detail perspective view of the parts shown in Figs. 5 and 6 as viewed from above or from the opposite side to that seen in said figures. Fig. 8 is a detail sectional View taken on the line 2 2, Fig. 6, looking in the direction of the arrow. Fig. 9 is a sectional vdetail view of certain parts hereinafter described, the devices for reciprocating the button-holder being in the position pictured in Fig. 5. Fig. 10 is a sectional detail view, also described hereinafter, the devices for reciprocatin g the button-holder being in the position pictured in Fig. 6. Fig. 11 is a View similar to Fig. 5, showing the contrivances employed for sewing on a four-hole but-ton with a parallel-bar stitch. Fig. 12 is a detail view hereinafter referred to in explaining the op eration of the machine in sewing on a bar-button. Fig. 13 is a detail view, parts being pictured as broken away, hereinafter referred to in explaining the connection of the quadrant with its operating means. Fig. 1+i is a view of the switclrcam. Fig. 15 is a detail sectional view on the line 3 3, Fig. 1l. Fig. 16 is a top plan view of the button-holder and presser-foot and part of the bed-plate, a fourhole button being shown in position in the holder. Fig. 17 is a sectional view vtaken on the linea 4, Fig. 16. Fig. 18 is a vsectional View taken on the line 5 5, Fig.`16. Figs. 19, 20,21, and 22 are diagrams of sewed-on buttons, showing the work that my improved machine is adapted to perform. y

In proceeding with a detailed description of my improvements I will first refer briefly to parts of a sewing-machine which are old and of common construction, as also to parts in a button-sewin g machine which constitute no part of my present invention, then describe the several groups of devices constituting my improvements, tracing their construction and operation from their source of power to the end of their particular functions, and finally set forth the manner in which the various contrivances co-operate in the complete machine. Y

A represents the bed of the machine; B, the overhanging arm; C, the standard supporting the same; D, the main shaft; E, the driving-pulley on the main shaft; F, an eccentric on the main shaft; G, (represented in dot-ted and full lines in Fig. 2,) a pitman connected atv its lower end with eccentric F and at its upper end with needle-shaft H to'impart a rocking motion to the latter; I, the needle-bar, adapted to be reciprocated by the needle-shaft; J the needle; K, a rotary hook on the forward end of the main shaft; L, the raeeway of the rotary hool; and means for supporting the same in position; M, a grooved cam on the main shaft for operating the thread take-up N; O, the spool, and P the threadtension. These parts maybe of the construction shown or of any other known or equivalent form, said parts constituting no part of my present improvements, being shown merely for the purpose of explaining the manner in which my improvements may be applied to button-sewing machines or sewingmachines of common construction.

The driving-pulley E is constructed to turn loosely on the main shaft D and to be connected therewith at desired times by any suitable clutch mechanism, the devices here represented being a dog, Q, hinged or pivoted on a collar secured to the main shaft, and having its outer free end normally held within the path of travel of a laterally-projecting pin, R, onV the driving-pulley E by a spring, S. The angular part T of clutch-lever L' is adapted at times, as hereinafter explained, to be brought within the line of travel of dog Q and move said dog on its pivot against the tension oit spring S, and so permit pin R on the driving-pulley to pass and said wheel to turn freely on the main shaft without operating the machine. At the same time that clutch-lever U is moved as aforesaid to bring the angular part Tin the line of travel oi' dog Q. said lever will be carried toward the main shaft, so as to be engaged by the locking device V, attached to cam M, so as to stop the rotation of shaft D at precisely the same point each time that driving-pulley E is unclntched from said shaft.

Having special reference to Figs. 5 and G, d represents a lever for operatingthe buttonholder and presser-foot. Said lever is of a form approaching an S shape, and is provided with an angular arm or branch, a', pivoted at one of its ends, as at e2, to the main part a, and at its angular point, as at a3, to the bed of the machine. From the form and arrangement of the button-holder-operating lever and its connections, it will be seen that when-it is moved to a slight extent on its pivotal point a3 the end a, attached to the button-holder, will to all intents and purposes be of a four-hole button and then the one opposite thereto to the needle, as indicated by 9 9, Fig. 19, and when said lever d is rocked on its pivot d2 its end ufl will be moved on a line substantially at right angles to that just described, as indicated by the arrows in Fig. G, the result of which will be to present the eyes 9 9 of the button shown in Fig. 19 to the needle, sewing on the button with a crossstitch. The distance or extent to which the end d4 of lever d is moved is of course slight, being sufficient merely to present Alirst one hole in a button and then the hole opposite to the needle of the machine.

The means for effecting the operation of lever a, aforesaid, are represented in Figs. 5 to S, inclusive, and will next be described.

b indicates what I term a quadrant, ful crnmed or pivoted on a stud, b', secured to the bed A. Said quadrant is provided on its lowerface with a curved groove, h2, and in its upper face, at one side of its pivotal point, with a groove, (See Fig. 7.) V

c indicates a block fitted to slide in groove b2 of the quadrant, and held therein in any suitable manner, a clip, c, being shown as secured to the side of the quadrant at one end of groove h2 to limit the movement of block e in one direction, and a pin, csecnred in the quadrant at the other end of said groove to limit the movement of the block in the other direction.

(l indicates a bar or rod pivoted near one end to block c and at the other end tothe rcarwardend of the main portion of lever n, and d indicates a bar or rod having one end also pivoted to block c and the other pivotally connected with branch d of lever a at or near the rearward cnd thereof. The construction of block c and its relationship to quadrant b and rods or bars d d. are such that when said block is moved against stoppin c'2 the center of pivot d2, by which haror rod d is connected to block c, will be directly under or in line with the axis oi" the pivot connecting quadrant l) with the bed of the machine, with the pivotal point d3 of lever d to one side thereof, as represented in Fig. 5, and when said block c is moved againstI clip or stop c pivot d, connecting bar or rod d with said block, will be in line with the pivot of the quadrant, and the pivotal point (F of har or rod (l will be to one side thereof,`as shown in Fig. (l. If now quadrant b should be rocked on its pivot, with the parts in the position in which they are represented in Fig, 5, bar or rod d will move lever d through its branch arm a and on its pivotal connection a3 with the bed of the machine to move the end a" of said lever in the direction of the arrows in said last-mentioned figure, bar or rod d having no effect upon said lever d; but when block c is shifted in slot b2 of quadrant b to the position represented in Fig. 6, the pivotal rconnection of rod or bar d with said block being in line with the axis of the pivot of the quadrant, said rod d will be lOO IIO

rendered inoperative, and bar or rod d will ettect a movement of lever a on its pivot a2, by which it is connected to branch a, and operate the end a in the direction indicated by the arrows in Fig. 6.

The means for effecting the rocking movement of quadrant b will next be described.

e represents a switch-cam, consisting of al cylindrical bodysecured to main shaft D, and provided in its :tace with double grooves e runnin therearound and crossing each other at a certain point, as represented in Figs. `5 and ist.

f represents a traveler, consist-ing ot' two shoes, f j, (see Fig. 7,),adapted to run in the cam-grooves e of the switch-cam c, secured to or forming part of a plate pivoted to the free end ot' a switch-lever, f2, which latter device is integrally or otherwise rigidly connected with a sleeve, f, adapted te turn on a pi n or stud, f4, secured to the bed of the machine. On the end ot sleeve f opposite that to which switch -lever is connected therewith is formed an arm,j"", extending at right angles rearwardly above quadrant b, as best seen in Fig. 7. Said arm is provided on the side facing quadrant b with a groove correspondingto groove L, and in each of said grooves is arranged a block, g, of such size and form as to adapt it to slide therein, and between said blocks and quadrant b and arm f5 extends one end of a curved stitch-regulating lever, g,fpivotally connected with said blocks g g by means of a pin, g2. Said lever g extends trom its pivotal connection with blocks g g around sleeve f3, and is pivotally secured in a slot, g3, in bed A, so that it can be adj usted therein tor a purposeto be presently explained. As main shaft D is rota-ted, switchlever f2 will be rocked on its pivot]al and, through the medium of sleeve f3, arm f5, and the described devices pivotally connecting sai d arm with quadrant ZJ, rock the latter on its pivot b, effecting the functions hereinbefore described. By adjusting the pivot-connecting lever g with the bed at different points in slot g3 the pivotal connection of arm with (,luadrant l) may be varied, so as to vary the throw oll the rocking movement iniljiarted to the latter, as also the extent oli' the movement oi' lever u, operated therebv, in a way that will be readily understood.

l provide means for automatically shitting block c in quadrant b at the proper times, in order to e'lt'ect the sewing on of a tour-hole button with a cross-stitch, as hereinbefore described, and connectsuch means with the mechanism for starting and stopping themachine, so that when the machine is started by a single act ot the operator a predetermined number of stitches will be taken through the pair ot' eyes of the button, the mechanism then changed to take a predetermined number of stitches through the other pair of eyes, and the machine then stoppedin position to begin the sewing on of another button. The l construction and operation of these devices will next be described.

h represents a three-armed lever pivoted on a stud or pin, h', screwed in a bracket, h2, secured to thestu d ft, upon which switch-lever f2 fulcrumed. A chain, i, is secured by one end to the end ot' arm h3 ot' said lever 7b and passes over a pulley, I, secured to a bracket, i2, attached to the bed of the machine, said chain passing down to a treadle or knee -lever, (not shown,) or any other equivalent device ot common construction, whereby the operator maybe enabled to draw down on the chain and move lever 7l on its fulcrum or pivot h against the tension of spring 714, attached at one cn d to bracket 7L2 and attlie other to arm 71.5 et lever 71., the normal position of said lever 7L beingl that in which it is pictured in Fig. l. dien the operator draws down on chain lz', so as to rock lever h upon its fulcrum h', the end ot' arm 71., which curves upwardly, will engage shipper-lever U and move it back against the tension of springs lV, bearing thereagainst, which will carry the angular part T of the shi pper-lever away from dog Q, and permit pin R oi driving-pulley E to engage therewith and so rotate main shaft D, the same movement of the clutch-operating lever freeing' the locking device V therefrom and placing all oi' the parts mentioned in the position represented in Fig. l.

ln order to lock or latch clutch-operatingl lever ll back in operative position, l provide a lever, j, pivot'ed on a stud,j, (shown in dotted lines in Fig. l and in t'ull lines in. Fig. 9,) projecting out fardly trom bracket 71.2, the rearward lfree end ot' which lever is provided with a notch or ottset at'j?, Fig. l, upon orbehind which lever U may be locked, lever ,7' being pressed (.lownwardly by a spring'. (Not shown.)

the machine, to which bracket secured a stud, k', forming a journal-bearing for a worin-wheel, constructed and arranged to be engaged by a worm, It?, on main shaft D and be rotated thereby. Vprin-wheel l is provided with an elongated downwardly-exteinll ing hub or sleeve, l,vto the lower end ot' which y is secured by means oli' dowels (not shown) a i plate, I, provided with a cam projection or wiper, I, adapted as the worm-wheel is rotated to come in contact with the upwardlybentY end ot a tinger, nl, adjnstably secured to lever ,j and forming an extension thereof. Said lever] and its extension-linger `m. are somewhat similar in term to the lever and its l eXtension-.tinger pivoted on stud J", as shown in Fig. t) and to be presently described.

As main-shaft D .is rotated, worm-wheel Z will be operated, carrying around with it plate l"E and wiper I", attached thereto, until said wiper is broughtin contact with the upwardlyextending end ot tingcr m, which effects a depression of said end ol said finger andl a consequent raising ol' the opposite endet lever TOO 7c indicates a bracket attached to the bed of IIO j, releasing or unlatching clutch-operating lever U and effecting' a stopping of the machine, as before described.

Rod or bar d is provided with a part, n, extending rearwardly from vthe point at which it is pivotally connected to block c, and a spring, n', vis attached by one end to the rearward end ol said extension and at the other end to the bed of the machine, as shown in Fig. l, the tendency of said spring being to f draw part n of bar d in the direction of the arrow marked in said last-mentioned figure. Arm 716 of lever h is provided on its end with an upwardly-projecting stud, to which one end of a link, n2, is pivotcd, the opposite end of which link is provided with a slot, through which extends a stud or screw-pin, n3, connecting said link with extension yn of the bar i d. Pin n3 is adapted to move freely in the slot of link n?, so that said link may be moved a slight distance without affecting the posi.- tion of bar d and its connections. When, however, lever 7l is rocked on its fulcrum h a sufficient distance to cause the upwardly-extending end of arm h5 to engage clutch-operating lever U and set or latch said lever inv position to permit the machine to operate, link a2 will be drawn forward or in a direction opposite to the flight of the arrow in Fig. l, drawing part n and block c, to which it is pivoted, in the same direction, and moving said block to the position in groove b2 of quadrant b in which it is represented in Fig. 5, in which position said block is latched or locked for the time being by the means which I will now proceed to describe.

o indicates a pin fitted to operate in a hole or bore made in the stud or bolt b', forming a fulcrum-bearing for quadrant h, and o indicates a spring placed in said bore or hole, upon which pin o is seated and by which said pin is pressed downwardly. The pivotal stud d2, bywhich bar orrod (l is connected to block c, has a hole or bore formed therethrough, and a pin, p, is arranged in said bore, as shown in Figs, 9 and l0. XVhen the slide c is moved to the position pictured in Fig. 5, the hole in pivot-stud (te will be lbrought to Aregister with pin o, and the latter will be pressed upward by spring o into the hole in stud d2, locking the slide in position.

`movement will bea-r against the upper end of i pin p, pressing the latter down until its head jl is broiiight to bear against offset p2 ol the i hole or bore in stud (P. Fig. 9.)

Block c maybe shifted from the position in which it vis re )resented in Fie'. 5 to that in i which it is pictured .inFig (l by pressing upward on the lower end of pin p until. pin 0 is pressed back far enough to j ust escape stud d2,

when spring n', operating on the extension n of bar or rod d, will draw slide c over from contact with stop-pin c? against stop-clip c', as represented in Fig. (3.

To effect the pushing back or upward of pins p automatically at the proper moment,

'Iin o in the downward i I pivot a lever, q, on stud j', as shown in Fig. 9, which lever extends backward and around under pin p, (see also Fig. 1,) and has a iinger, q', adjust-ably secured to its under side, which finger projects forward and upward, so that its free end will be brought into the path l of travel of wiper Z4 on the side of stud 7o opposite that at which the end of finger m is located, so that when the parts are in the position in which they are represented in Fig. 2 and the machine is setin motion the end a4 of button-holder-operating lever will be reciprocated, as represented by the arrows in Fig. l 5, and sewing will be performed through the eyes 9 9 of the button, as shown in Fig. 19,1mtil worm-wheel l is turned substantially onehalf-way around, when wiper Z4 will come in Contact with fin ger q', depress the same, rocking lever q on its fulcrum-pin j', and raising its rear end, so as to press upward or backward pins p o from the position portrayed in Fig. 9 to that shown in Fig. IO, when, by the operation of spring n', block c will be shifted from the position represented in Fig. 5 to that represented in Fig. 6, resulting in reciprocating lever a, as indicated by the arrows in the last-mentioned figure, and sewing through the eyes 9 9 of the buttons until the worm-wheel completes a revolution, at which mom ent wiper end of inger ym, with the effect ofstopping the machine, as before described. In this way button after button may be sewed on with a cross-stitch, the machine stopping at the completion of each operation to permit the work to be moved and a newbutton inserted in the holder.

It should have been explained that in operating lever h to set the machine in motion arm h6 is moved far enough to draw back link n2, so as to set slide c in the position represented in Figs. l, 5, and 10, the slot in said link allowing said slide and its connected parts to move from the position shown in the last-mentioned figure to that pictured in Figs. G and 9 without disturbing the position of the parts which lock the machine in opera* l tive position.

l To effect the sewing on of a button with a l parallel-bar stitch, as represented in Fig. 20, I remove stud a3, disconnecting link n2 from L the extension n of bar or rod d, so that the l slide c will always remain in the position in l, which it .is represented in Figs. G and ll. I then disconnect bar or rod d from branch a l oit' lever a by withdrawing spring-pressed stud l r from groove r of pivot-pin s and draw down said pin until said stud r snaps into groove fr?, when pin s will be held in withdrawn position, allowing lever a to move l without interference from rod or bar d. 'iper t, adjustable on an extension, t', of branch a of lever a, is then set, so that its rearward end will rest against the lowerface, n3, of cam u, all as shown in Fig. 11. With this position of the parts and the machine-in l* will be brought in contact with the forward IOO IIO

operation end a4 of bntton-holderoperating lever will be reciprocated, as indicated by the arrows in the last-mentioned ligure, sewing through eyes S 8, Fig. 20, of the button until the incline u of cam u comes in contact with wiper t, which will suddenly effect a slight movement of lever a on a line atright angles with the arrows pictured in Fig. ll, the reciprocations of the button-holder-operating lever continuing as before, and sewing being effected through the eyes 8 8 of the button until wiper t reaches incline u2 and drops to the lower portion, u?, of the cam, at which time wiper l"l will come in contact with finger m and stop the machine.

To sew on a bar-button like that represented in Fig. 21, an eccentric or cam, s', is substituted for cam u, and wiper t set so that said cam s may operate thereon, as shown in Fig. l2, the result of which will be that lever a will be reciprocated, as indicated by the arrows in the last-mentioned figure, so as to sew across bar 7 of the button, Fig. 2l, and be gradually drawn in a direction at right angles to said arrows, forming the stitches over bar 7 from one end thereof to the other and return, the reciprocations of the lever a in `the direction of Jthe arrows being effected through the medium of bar or rod d, and the transverse movements through the medium of cams u s', wiper t, and branch a of said lever.

A two-hole button may be sewed on by setting wiper i back so as not to be affected by the cams yu or s', and with the parts in position as represented in Figs. 6 and il, and link n2 disconnected from part n, which will result in a single reciprocatory movement of lever a and the sewing through eyes 7 7 of the button, as shown in Fig. 22.

X represents the button-holder and presserfoot, consisting of a springsteel plate, t, adapted to rest on the bed of the machine, and to which the forward end, ai, of the lever a is secured by means of abolt, i", and a thumbscrew, r2. Said plate n is bent at its rearward end, as at rg, so that a portion, r4, thereof extends forward above the main portion c and substantially parallel therewith, to which portions o* the button-holder and presser-foot lever n: are secured by means of screws w w.

.fr represents a duplex bntton-holder-that is, a two-armed device-each arm ofA which is adapted to receive and hold a button, which button-holder is pivoted to lever u' by means of a thumb pin or bolt, a1', passing through the forward end of lever `zu and screwed into the button-holder 1f, as best seen in Fig. 17.

Button-holder is provided on its upper surface with iianges fr? a?, Fig. i8, between which the forward end of lever w is adapted to rest and fit therebetween in a snug manner.

@u2 indicates a iiat spring secured at its rear end to lever w and at its forward end embracing thumb-pin no and bearing upward against the head of said thumb-pin fr', so as Ito hold the button-holder up against the button-holder lever, and at the same time permit it to be pressed downward therefrom by means of the thumlrpin a', so that its flanges 002 :r2 may escape the button-holder lever, and so allow either arm of the button-holder lever to be brought in line vertically with the needle. The obj eet 'of the duplex character of the button-holder is to adapt the same device to different-sized buttons.

y indicates a link, to which a rod or chain connecting the button-holder lever with a treadle or like device (not shown) may be attached to raise said lever by the movement of the operators foot whenever desired.

z indicates a presser-bar resting at its lower end on the button-holder lever an d borne upon at its upper end by a spring, e.

lt will be noticed that it is the peculiar construction of the button-holder-operating lever that enables me to adapt my invention to the sewing on of buttons having different forms of eyes, as described, and that by the oscillating quadrant and the moving slide therein, as also worm-wheel l, I am enabled to operate said lever as desired.

The purposes, advantages, and mode of operating other parts of the in ven tion have been so fully explained hereinbefore as not to need further mention.

NVhile I have been particular to describe the exact form and arrangement of all the parts, as herein shown, it is obvious that these may be changed without departing from the nature or spirit of the invention.

Having thus described my invcmtion7 what I claim isl. In a button-sewing machine, the combination, with the machine-bed, a sewing mechanism, and a button-holder, of a button-hold` er-operating lever, a., and an angular arm or branch lever, a', said arm or branch being' pivoted to the bed and at one end pivotally connected with said lever, whereby either the pivotal connection of the lever with the arm or branch or the pivotal connection of the branch with the bed may be employed as the fulcrnm of the lever in the operation of the latter, as set forth.

2. In a button-sewing machine, the combination, with the machine-bed, a sewing mechanism, and a button-holder, of a button-holder-operatin g lever, d, an angular arm orbranch lever, a', said arm or branch being pivoted to the bed and at one end pivotally connected with said lever, rods or bars pivotally connected with the free ends of said lever and arm or branch, an oscillating quadrant, and a block movable or adjustable on said oscillating quadrant to which the other ends of the rods or bars are pivoted, as set forth.

3. In a button-sewing machine, the combination, with the machine-bed, a sewing mechanism, and a button-holder, of a button-holder-operating lever, a, an arm or branch lever, a', said arm or branch being pivoted to the IOO IIO

bed and at one end pivotally connected with said lever, and a cam for operating on the free end of said branch lever, as set forth.

fl. In a button-sewing machine, the combination, with the machine-bed, a sewing mechanism, and a button-holder, of a button-holder-operatin g lever, a, an angular arm or branch lever, a', said arm or branch being pivoted to the bed and at one end pivotally connected g with said lever, rods or bars d d', the 'former pivotally Connected with the free end of lever a and the latter detachabl'yf pivoted to the free end of branch a, an oscillating quadrant, and a block movable or adjustable on said quadrant to which the other ends of rods or i bars d d are pivoted, as set forth.

5. ln a button-sewing machine, the combination, With the bed of the machine, a sewing' mechanism, and a b Litton-holder, of a button-holder-operating lever, a, branch uf, rods or bars d d', the former pivoted to one end of said lever and the latter pivoted to one end of said branch, an oscillating quadrant, a block movable or adjustable on said quadrant, mechanism, substantially as described, for locking said block in one position on said quadrant, and devices, substantially as described, for unlocking or releasin0i said block to permit it t0 be moved to another position on said quadrant, as set forth.

(l. ln a button-sewing machine, the combinatio11,\vith the machine-bed, a sewing mechanism, a button-holder, and a button-holderoperating lever, of a quadrant pivoted on the bed, a rod or link connecting the quadrant with the button-holder-operating lever, and means for oscillating said quadrant, such means consisting' of a rotary cam, a pivoted switch-lever adapted to engage said cam and be oscillated thereby, an d an arm,f, rigidly connected with said switch-lever and loosely connected With said quadrant, as set forth. I

'l'. ln a button-sewing machine, the combination, with a sewing mechanism, a buttonholder, and button-holder-operating lever, of an oscillating grooved quadrant, a rod or-link connecting the quadrant with the buttonn holder-operating lever, an oscillatin g switchlever provided with a grooved arm,f", the bed of the machine provided with a slot, g3, arm g', adjustably pivoted in said slot g, and blocks g g, adapted to slide in the groove of the said quadrant and arm f, to which blocks the other end of arm g is pivoted, as set forth.

S. ln a button-sewing machine, the combination, with a sewing mechanism, a buttonholder, and button-holder-ope'rating lever', of a quadrant, I), provided with a groove, b2, a slide, c, in said groove, a rod or link connecting said slide with said button-holder-operating lever, and means for locking said slide in said groove and releasing' the same, consisting of pin o and spring o', a stud or bolt, b', connected with said quadrant, in a hole or bore of which stud or bolt said pin and spring are arranged, pin p, alever at one of its ends in contact with said pin, and a cam or Wiper to act upon the other end of said lever, adapted to operate in slide c, as set forth.

i). In a button-sewing machine, the combination, with a buttonholder-operating lever, of plate fr, button-holder lever lr, duplex button-holder :0, thumb-pin crf, and spring ai, as set forth.

In testimony whereofl l have signed my name to this specilication, in the presence of two subscribing Witnesses, this lith day of April, A. D. 1887.

ARTH UR W. CnossLEY, C. F. BROWN. 

